A 3D lenticular print can be viewed just like an 'ordinary' print. You do not need
a special viewing device to see the 3D effect. The 3D print, however, is specially
produced by a complicated process to achieve this degree of reality. On the surface of the print is a laminated
layer of many tiny, parallel cylindrical lenses. The array is so dense that it is very
difficult to discern the grating. One downside of lenticular prints is that perceived clarity is
usually less than you see on an ordinary print. But, that depends on how closely these long lenses
are packed. Today, technology is advanced far enough that clarity of the 3D prints
is very acceptable. With the added benefit of 3D, they can be absolutely surprising. Of course,
there are those who have contrary opinions, afterall that can be said about anything
and any topic. You, personally, have to be the judge. Try searching for lenticular and
revel in the info you gather.